Agptating mechanism



M. DONAUER.

AGITATING MECHANiSM.

APPLICATION FILED OCT. 2U 1920.

1,406, 355 Patented Feb. 14, 1922.

INVENTOR M A/- Dow AU E R warren stares PAT NT. OFFICE.

MAX DONAIIER, 03F ELYREA, 013119, ASSIGNOR TO THE ELYRIA ENAMELED PRODUCTS COMPANY, ornnynm, orrro. a oonroaa'rron or OHIO.

1 .aerra'ri-ive momma.

incense dent of the United States, residing atElyri-a, in theco'unty of Lorain and State :of Ohio, have invented certain new and useful I111- provements in Agitating Mechanisi'ns; and I do hereby declareth'e following to bee full, clear, concise, and exact description of the same, such as. will enable others skilled intermingling of in the art to which my. invention appertains to make'and use the'same. I I

My invention relates toagitating mechanism and more particularlyto that for'mof V mechanisms In wh ch .a liquid containing" vessel is employed iii-combination with a rotating stirring device which may be open ated by a suitable source of power to cause in the vessel. l

An object of my invention 18 to provide .in sucha mechanismfa combination ofelements which are simple and inexpensive to manufacture, to assemble, to maintain sani-.

. and in which description reference will be had to the drawings accompanying this specification. Referring to the drawing:

Fig. 1 shows a plan view of an embodiment of my invention comprising a cylindrical tank and agitating mechanism mounted therein.

Fig. 2 shows a side view partly in section along the line II of Fig. 1.

Referring now to the figures at A, I show the cylindrical side walls of a tank having preferably a downwardly dished bottom wall B. l assing through the side walls, at points substantially opposite to each other, are a pair of propeller-shafts S and N upon the inner ends of which are mounted respectively, propellers P and P Uponthe outer ends of the shafts-S and N are mountedpulleys P and P whereby the shafts may be rotated by means of belts passed over the pulleys and movable by a suitable source of power, as by an electric motor.

I preferably arrange the propellers face to face near the center of a dished bottom tank and mounted on horizontal rotating shafts, although they may be placed otherliquid particle's contained,

p I f'wisefso rams myinvention in some of its Be it known that'I, Max Domitian, a res broader aspects is concerned.

An essential distinction between the propellersplaced asfaccording to the present invention, and as-has been previously pro: posed' in prior constructions, is that in the device of my invention I place the propellers-so that their opposing faces are rel- Speeification'of Letters Patent: .Patented"Feb 14 1922. we filed .cct tia, 920 ee -mire. 419,811.

atively close together, soias to produce a re stricted path for the flow of water from or to the enclosed space between the propellers, depending upon the direction of rotation. v

I [also preferably construct the propellers alike as to 'pitch,- but being oppositely moii'nted'in the tank, they are rotating in opposite directions so as to tend to neutralize each that effect of, the other upon the I liquid contents of the? tank which in each case, if unopposed, would causethe liquid containedin the tank to have a strongtendency to rotate with the propeller and about its axis of rotation, and a prolongation thereof. However, my invention may be practicedin some of its more specific aspects without consideration of this feature of pitch as above outlined.

I'prefer, for most purposes, to operate the propellers of my improved device in opposite directions, as indicated by the arrows shown on the pulleysP and P and I prefer to have the propellers so pitched that .each propeller per so will be a righthand propeller, but I may also operate these prooellers for other purposes, in the directions indicated, and with the pitch of each corresponding to that of a left-hand propeller.

Of course, if the direction of rotation as indicated by the arrows is reversed, to secure the same result, the pitch of the propellers would be reversed. But in every case, I prefer to have the distance to between the propeller blades relatively small as compared with the distance represented by the length of the diameter of the tank.

When the device of my invention is operating in the direction as shown by the arrows, or oppositely, due to the relatively small distance to between the propeller blades, the contents of the tank passing from the propellers, are thrown peripherally of the propeller set and passing from there in all directions aganistthe tank bottom and against the side walls of the tank.

In the device of my invention, the propellers may be caused to operate in such a that the result secured, namely, that of thorough intermingling of the different particles comprised in the tank contents, is se-' cured.

I realize these results in both cases by the arrangement of the propellers in close proximity of each other, causing a restriction of the patl'ibetween the ends of the propeller blades, which path is in the line of communication from the space between the propellers to the space outsideof the propellers.

\Vhile I have illustrated a specific sin-- bodiment of my invention, Iwish it understood that I do not wish tobe limited to the said embodiment, as Iain aware that numerous and extensive departures may bemade from the embodiment illustrated, but without departing from the spirit of my inven-' tion, and I am aware that the novel mode of in toto oren parte.

I claim: 1. In a device of the 1920., class described, the

combination with a fluid containing vessel, said vessel having cylindrical, vertical side walls and a bottom wall, of a pair of alike the suctionor fluid drag between the propellers will cause the propeller projected fluid currents to pass nearly radially from the propeller blades.

2. In a device of theclass described, the

combination with a fluid containin vessel,

said vessel shaving-cylindrical, vertical side walls and a bottom wa1l,of a pair of, alike pitched propellers, each adapted to. rotate-I within the vessel, said propellers being adapted to rotate in 'o posite irections and in substantially, paral e1 vertical planes of such a size and positionedso closely adjacent toeach other and to the bottom wall that when so rotated the suction or fluid dragbetween the propellers will cause the propeller projected fluid. currents to. pass nearly radially from the ropeller blades. operation herein described, maybe realized In testimony whereo I have hereunto signed my name this 22nd day of October,

MAX DONAUERQ 

